Polycyclic Aromatic Hydrocarbons (PAHs) in Wheat Straw Pyrolysis Products Produced for Energy Purposes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27730%2F24%3A10255735" target="_blank" >RIV/61989100:27730/24:10255735 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2071-1050/16/22/9639" target="_blank" >https://www.mdpi.com/2071-1050/16/22/9639</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/su16229639" target="_blank" >10.3390/su16229639</a>

Result language

angličtina

Original language name

Polycyclic Aromatic Hydrocarbons (PAHs) in Wheat Straw Pyrolysis Products Produced for Energy Purposes

Original language description

To obtain liquid and gaseous forms of biomass fuel, wheat straw pellets were pyrolysed in a screw reactor at temperatures of 300, 400, 500, 600, and 700 oC. The analysis of the effect of process temperature on changes in the physicochemical composition of the raw material used and the biochar, pyrolysis liquid, and synthesis gas obtained from it was carried out. It was checked whether biochar does not contain substances harmful to health by determining polycyclic aromatic hydrocarbons (PAHs) in it. Similar tests were carried out for pyrolysis fluid. The analysis used standards for the most dangerous PAHs: fluorene, anthracene, fluoranthene, benzo[b]fluorine, benz[a]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[a]pyrene, diben[a,h]anthracene, benzo[g,h,i]perylene, indeno[1,2,3-cd]pyrene. The results showed that the total content of polycyclic aromatic hydrocarbons in the biochar ranged from 346.81 µg.kg-1 at 300 oC to 1,660.87 µg.kg-1 (700 oC). In the pyrolytic fluid, PAH content ranged from 58,240.7 µg.kg-1 (300 oC) to 101,889.0 µg.kg-1 (600 oC). It was found that the increase in PAH content in both the biochar and the liquid progressed with increasing pyrolysis temperature. After finding a correlation between the increase in PAH content in biochar and the increase in the content of high-energy gases in the synthesis gas, it was concluded that it is difficult to reconcile the production of PAH-free biochar in the pyrolysis of biomass to obtaining high-energy gas and pyrolysis oil.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20600 - Medical engineering

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Sustainability

ISSN

2071-1050

e-ISSN

2071-1050

Volume of the periodical

16

Issue of the periodical within the volume

22

Country of publishing house

CH - SWITZERLAND

Number of pages

14

Pages from-to

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UT code for WoS article

001366034600001

EID of the result in the Scopus database

2-s2.0-85210234699